Respondents identified project areas in need of further analysis, such as the complexities of integrating bus and streetcar operations; the plans and status of an environmental review for streetcar segments; information on potential funding; and inclusion of streetcar vehicles with overall procurement.

"Responses to the [request for information] identified key areas of the project where additional analysis is needed prior to issuing a request for proposals," said DDOT Director Terry Bellamy in a prepared statement.

DDOT will host an industry forum and webcast later this month to review the information obtained. Additional industry sessions will cover the program, as well as individual project components. These steps, along with input from the Mayor's Streetcar Financing and Governance Task Force, will help form the future request-for-qualifications and request-for-proposals process, DDOT officials said.